Combined drawing instrument, book-mark, and paper-cutter.



H. JOHNSON. COMBINED DRAWING INSTRUMENT, BOOK MARK, AND PAPER CUTTER.

VAPPLIOATION FILED AUG. 6, 1912. v 1 078 145. Patented Nov. 11, 1913.

2 SHEETSSHEET l.

gllll llmu I IIIHIIHHH 5- IIIIIIIHHIHEI a a )3 I H. JOHNSON. COMBINED DRAWING INSTRUMENT, BOOK MARK, AND PAPER CUTTER.

I APPLICATION FILED AUG. 6, 1912.

Patented Nov. 11, 1913.

2 SHBETSSHEET Z.

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I11 M 1|1| II1I1IIIIIQ nrrn HAROLD JOHNSON, or BROOKLYN, N wYon-x.

COMBINED DRAWING INSTRUMENT, noon-Manx, AND PAPER-CUTTER...

Specification of Letters Patent Patented Nov.11,1913.

' Application filed August 6, 1912, Serial No. 713,656.

To all whom it may concern."

Be it known that I, HAROLD Jormson, citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certainv new and useful Improvements in Combined Drawing Instruments, Book-Marks, and Paper-Cutters, of which the following is a specification.

This invention is acombined drawing instrument, book-mark, and paper Cutter, and has for its object the provision of a cheap, simple, and eflicient device which may be utilized in various capacities.

The invention is fully illustrated in the accompanying drawings and consists in certain novel features of construction and arrangement which will be hereinafter first fully described and then more particularly pointed out in the appended claims.

In the drawings :Figure 1 is a plan View of my improved device arranged for use as a square; Fig. 2 is a plan view of a portion of the device showing it arrangedv for use as a T-square; Fig. 3 is a plan View showing the manner of using the device as a book-mark; Fig. 4 is a detail section taken on the line 4& of Fig. 1; Fig. 5 is a detail section taken on the line5 5 of Fig. 1; Fig. 6 is a detail perspective view of a clip employed to secure the main members of the tool together, when it is desired to use the same as a square; Fig. 7 is a detail plan view of the blank from which the pointer is formed; and Fig. 8 is a detail plan View of a portion of the blank from which the main members or branches of the tool are formed.

In carrying out my invention,I employ a pair of limbs or main members 1 and 2 which are constructed of light metal and have straight edges, as clearly shown.

member and the opposite edge of.each member is constructed with a bead or'flange 4: to reinforce the same and also serve as a or, when the device is utilized. as a bo k scale 3 is marked along one edge of each" mark, to accurately Inarkthe point at which the reading stopped.

Eachcbranch or main member of the tool is stamped out of' sheet metal with a proectmg portion 6 along one edge and the said; projecting portion 6 is'then folded or doubled over upon the main portion of the blank to constitute the flange or bead 4:, the edge of this bead or flange being left free of the, main body of the limb or member so that a portion of the index or pointer 5 may project under the said edge and be thereby held to the limb while permitted to slide freely along the same. The ends of this bead are subsequently compressed and intimately united-with the main body of the leg or member of the tool so that a stop will be providedtolimitthe movement of the index or pointer and prevent the detachment of the same from the body and thereby avoid its loss. The said index or pointer is preferably constructed from a blank of the form shown in Fig. 7 in'which a pair of longitudinal tongues 7 are C011. nect-ed by a central reduced neck 8, the portions of the tongues immediately adjacent the neck being laterally extended, as indicated at-9, in order to impart an ornamental appearance to the device and also to aid in determining the exact point marked by the indicator. By providing these lateral extensions the neck will appear, by contrast,

10' and 11,.the head 10 being smaller than, the head 11 and being adapted to extendunderthe free edge of the'bead or flange 4,

while'the head 11- is adapted to bedoubled around thefiange, as shown in Fig. 5.

In applying the index to the body of the "the neck 8 so'that the tongues 7 are brought together," afterwhich' the said tongues are "placed against the opposite faces-of the main member, thehead 10 is inserted under the head 4 anda tooth 12 is struck up centrally from-the said head. The head 11 1s doubled around the flange, and the central portion device, the blank is folded atthe'center of r;

35 members or rules, when the device is used as V ofsaid'head, shownat 13,is struckout to be engaged by the said tooth 12, so that the two heads will be locked together, and the 7 free edge of the head .11 .is bent past the free edge of thebea'df tso astome'st upon the 'exposed portion bf theheadilo, will be *readily :understooct upon reference to .F Itzwill thus beseen'that Lliave pro vi'ded an exceedingly simple and easily applied indicator which may be readily moved along the main member or rule which constitutes a leg-.01- branch of the tool and will be. effectually heldagainst accidental release from the said tool."

One end of eachbr-anch, maini'memiber, or

' rule is curved, as shown at li and the opposite end is reinforced by a bead 15 secured thereto} by suitable rivets and constituting a rest against which .the other rule or main 'm'e nber of the instrument may be "placed so 7 that the 'twomem'bers will be. arran ed at a 7 right angle, when it is desired to utilize the device as a drawing instrument. A U.- shaped plate or clip'16 is securedto the bead 1 5 and projectsbeyond'the same over the rule ormember carrying thesaid bead,and

fthis clip isadalp'ted to engage over the meeting: portion of the co-acting' rule or main member of the device, when the tool is used as a drawing instrument. When the device is used as, a book-mark, the two members are separa'tedfand the said clip is engaged over theedge of the leaf so as to hold the rule thereon, as clearly shown in Fig. 3. To prevent accidental detachment of the two a drawing inst-1ai1nent,I employ a clasp consisting of a U-shaped spring plate 17 adapted to fit over the'clips 16 and provided on one branch with an inwardly projecting stud or pin 18 adaptedtopass through the op eningsprovided thereforin the-clips 16 and the main members or rules'land 2.

17 is then fitted over the" clip .1'6 at the end When it is desired to use thefdevice as a T-square, the member 1 is shiftedalong the member '2 to the'centerthereof and the clasp of theme'mber 1 and the pin or stud '18 is caused to engagean opjen1ng19 provided for that purpose at the center ofthe member 2,

(as will be" readily understood on reference to Figs; 1 and 2.

The useandadvant-ages of the device are thought to'be obvious from-thefforegoing .55

' companying drawings.

description, taken inconnection with the ace The several' ele- Ir 'ments of the-tool maybe easily separated a-replaced against the leaf of abookwith 'the 'clipjs engaging theupper'edges of the ing and the book will remain unmarred and unmutil'a'ted. Should the leaves of a book ormagazme be uncut, either member or rule of the device may be readily run within the fold of the uncut leaves and will quickly separate the same. Either member or rule may be utilized as'a straight edge, separately from the other member, so thatthe ,device will be found of great convenience to bookkeepers. I i

The U-shaped clasp 17 may be utilized, whenremoved fromthe main members of the tool, as a paper clip or file to hold bills, -notes, or other loose sheets by being engaged over the edges of the same.

Thesever-al parts of the device are exceedingly simple in their construction, and, as they all may be stamped out of sheet metal,the instrument will be found exceedingly durable Without being expensive to produce and without being cumbersome and heavy. 1 i

hat I claim is: V

1, In a device for the purposes set forth, the combination of a main member having avbead formed along one edge, and an indicator fitting around and close to the mem-. ber and having interelocking heads, one of said heads engaging under the free edge of the bead and the other head being folded over and around the bead.

2. Ina'devic'e' for the purposes set forth, the combination of a main member having a bead formed along one edge, and an indicator consisting of a pair of tongues disposed against the opposite sides of the said member and connected by a reduced neck at one side edge of the said member, and interlocking heads formed at the opposite ends of the saidtongues, one of said heads engaging underthe free edge of the bead and the other head being doubled over and around the bead.

3. In a device for the purposes set forth, the combination of a main member having a bead formed along one edge, and'an indicator consisting of tongues fitting transversely against the opposite sides of'the said member, a reduced neck connecting said tongues atone edge of the said member, a head at the opposite end of one of the tongues engaging under the free edge of the bead and having a tooth struck up therefrom, and a head at the opposite end of the other tongue doubled over and around the bead and having interlocking'engagement with the said tooth; L

4. In a device for the purposes set forth,

the combination of main members each proclasp fitted upon said clip aind carrying a 10 vided at one end with a bead adapted to stud'adapted to pass through the clip and fit against an edge of the other member, the two members.

and a clip carried by the end of one mem In testimony whereof I affix my signature ber and engaging the other member. in presence of two witnesses. 5. In a device for the purposes set forth, HAROLD'J OHN SON. [1 s.]

the combination of main members, a clip Witnesses: i

carried by the end ofone member adapted TRYGEN JOHNSON,

to engage the other member, and a U-shaped JENNIE D. HELGESEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

1 Washington, I). 0. 

